Demi-cercle à alidade en laiton, double graduation de 0 à 90°, la platine

Half-circle with brass alidade, double graduation from 0 to 90°, the plate with engraved decoration on the front of the inscription "H. Schorf" in a medallion flanked by winged chimeras holding a shield, on the back an allegory of Peace, signed "Jon Trinder Sculp". Schorf" in a medallion flanked by winged chimeras holding an armorial shield, on the reverse side an allegory of Peace, signed "Jon Trinder Sculp".
Germany, 18th century 12,3 x 20 cm